Games like Silen House
Games like Silen House include Firework, Paper Bride, Sally Face - Episode One, Little Nightmares, and Unheard - Voices of Crime. We matched them by the tags players give Silen House on Steam (Puzzle Platformer, Casual, Puzzle, 2D, and Horror): closest matches first, and among equally close ones the better-known games.

Firework
Shared: Puzzle · Horror · 2D

Paper Bride
Shared: Puzzle · Horror · 2D

Sally Face - Episode One
Shared: Horror · Puzzle · Psychological Horror

Little Nightmares
Shared: Puzzle Platformer · Horror · Puzzle

Unheard - Voices of Crime
Shared: Detective · Puzzle · Thriller

Little Nightmares II
Shared: Horror · Puzzle · Puzzle Platformer

LIMBO
Shared: Puzzle Platformer · Puzzle · 2D

Cube Escape Collection
Shared: Puzzle · Horror · Psychological Horror

DISTRAINT: Deluxe Edition
Shared: Horror · 2D · Psychological Horror

INSIDE
Shared: Puzzle Platformer · Horror · Story Rich

Poppy Playtime
Shared: Horror · Puzzle · Psychological Horror

Return of the Obra Dinn
Shared: Puzzle · Detective · Story Rich

MiSide
Shared: Psychological Horror · Horror · Story Rich

Murders on the Yangtze River
Shared: Puzzle · Detective · Puzzle Platformer

The Rewinder
Shared: Puzzle · 2D · Detective

The White Door
Shared: Puzzle · Detective · Indie

Rusty Lake Paradise
Shared: Puzzle · Horror · Psychological Horror

Fran Bow
Shared: Puzzle · Psychological Horror · Horror

No, I'm not a Human
Shared: Horror · Psychological Horror · Story Rich

Sanfu
Shared: Puzzle · 2D · Puzzle Platformer

The Case of the Golden Idol
Shared: Puzzle · Detective · 2D

ANIMAL WELL
Shared: Puzzle · Puzzle Platformer · Horror

Zup!
Shared: Casual · Puzzle · 2D

The Room Two
Shared: Puzzle · Horror · Mystery